All-terrain vehicle



FIG. 1 is a first side elevation view of a new design of an all-terrain vehicle;

FIG. 2 is a second side elevation view of the all-terrain vehicle;

FIG. 3 is a top view of the all-terrain vehicle;

FIG. 4 is a front view of the all-terrain vehicle;

FIG. 5 is a rear view of the all-terrain vehicle; and,

FIG. 6 is a perspective view of the all-terrain vehicle.

The portions shown in broken lines form no part of the claimed design. 

The ornamental design for an all-terrain vehicle, as shown and described. 